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laforge gerrit-no-reply at lists.osmocom.orglaforge has submitted this change. ( https://gerrit.osmocom.org/c/osmo-bts/+/19703 ) Change subject: common: tx_power: Fix bug in power ramp up below max-initial value ...................................................................... common: tx_power: Fix bug in power ramp up below max-initial value See previous commit adding the unit test about the error description and expected behavior. The wrong behavior appeared due to step_size_mdB being unsigned and the whole addition at the left side of the comparison being turned too as unsigned, hence a small negative value turning into a big positive value, and tpp->p_total_cur_mdBm not being updated to speed up the power ramping. Change-Id: I36a34362ebc90226fd8e1e190f898c3718fd923a --- M src/common/tx_power.c M tests/tx_power/tx_power_test.err M tests/tx_power/tx_power_test.ok 3 files changed, 1 insertion(+), 13 deletions(-) Approvals: Jenkins Builder: Verified laforge: Looks good to me, approved diff --git a/src/common/tx_power.c b/src/common/tx_power.c index c5ea7ed..08c4236 100644 --- a/src/common/tx_power.c +++ b/src/common/tx_power.c @@ -278,7 +278,7 @@ } else { /* We need to step it up. Start from the current value, shortcutting to max-initial. */ /* Set attenuation to cause no power change right now */ - if (tpp->p_total_cur_mdBm + tpp->ramp.step_size_mdB < tpp->ramp.max_initial_pout_mdBm) + if (tpp->p_total_cur_mdBm + (int)tpp->ramp.step_size_mdB < tpp->ramp.max_initial_pout_mdBm) tpp->p_total_cur_mdBm = tpp->ramp.max_initial_pout_mdBm - tpp->ramp.step_size_mdB; tpp->ramp.attenuation_mdB = tpp->p_total_tgt_mdBm - tpp->p_total_cur_mdBm; diff --git a/tests/tx_power/tx_power_test.err b/tests/tx_power/tx_power_test.err index 3ef12c9..72a3d85 100644 --- a/tests/tx_power/tx_power_test.err +++ b/tests/tx_power/tx_power_test.err @@ -36,14 +36,6 @@ (bts=0,trx=1) ramp_timer_cb(cur_pout=33000, tgt_pout=33000, ramp_att=0, therm_att=0, user_gain=0) (bts=0,trx=1) ramping TRX board output power to 23000 mdBm. (bts=0,trx=1) power_ramp_start(cur=-10000, tgt=10000) -(bts=0,trx=1) ramp_timer_cb(cur_pout=-8000, tgt_pout=10000, ramp_att=18000, therm_att=0, user_gain=0) -(bts=0,trx=1) ramping TRX board output power to -8000 mdBm. -(bts=0,trx=1) ramp_timer_cb(cur_pout=-6000, tgt_pout=10000, ramp_att=16000, therm_att=0, user_gain=0) -(bts=0,trx=1) ramping TRX board output power to -6000 mdBm. -(bts=0,trx=1) ramp_timer_cb(cur_pout=-4000, tgt_pout=10000, ramp_att=14000, therm_att=0, user_gain=0) -(bts=0,trx=1) ramping TRX board output power to -4000 mdBm. -(bts=0,trx=1) ramp_timer_cb(cur_pout=-2000, tgt_pout=10000, ramp_att=12000, therm_att=0, user_gain=0) -(bts=0,trx=1) ramping TRX board output power to -2000 mdBm. (bts=0,trx=1) ramp_timer_cb(cur_pout=0, tgt_pout=10000, ramp_att=10000, therm_att=0, user_gain=0) (bts=0,trx=1) ramping TRX board output power to 0 mdBm. (bts=0,trx=1) ramp_timer_cb(cur_pout=2000, tgt_pout=10000, ramp_att=8000, therm_att=0, user_gain=0) diff --git a/tests/tx_power/tx_power_test.ok b/tests/tx_power/tx_power_test.ok index ec3ea61..c8f0441 100644 --- a/tests/tx_power/tx_power_test.ok +++ b/tests/tx_power/tx_power_test.ok @@ -23,10 +23,6 @@ CHANGE_POWER(23000) power_ramp finished Testing tx_power ramping for osmo-bts-trx after lock -CHANGE_POWER(-8000) -CHANGE_POWER(-6000) -CHANGE_POWER(-4000) -CHANGE_POWER(-2000) CHANGE_POWER(0) CHANGE_POWER(2000) CHANGE_POWER(4000) -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/19703 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: I36a34362ebc90226fd8e1e190f898c3718fd923a Gerrit-Change-Number: 19703 Gerrit-PatchSet: 2 Gerrit-Owner: pespin <pespin at sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge at osmocom.org> Gerrit-MessageType: merged -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20200820/62455107/attachment.htm>